【题目】若多项式A满足A+2a2b2=3a22b2A =_________


参考答案:

【答案】a2-b2

【解析】解:A=3a2﹣2b22a2b2=3a2﹣2b2﹣2a2+b2=a2b2故答案为:a2b2

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